Driven mold for sunken concrete structures.



l l L. H. BRAcE. DRIVER HOLD FOR SUNKEN CONCRETE STRUCTURES.

A IUATIOI FILED AUG.

903,441. a 1m' Patented Nav. 10,1908.

SHEET SHEET 2.

L. H. BRACB. DBIVBN MOLD FOR SUNKEN GONCBETE STRUCTURES.

Patented Nov. 10, 1908.

APPLIIOATION FILED A UG. 3, 1908. 903,441

6 SHEETS-SHEET 3,

w l l lIIPIIIllllllId/IIIIII. rlflllflllflllff Unrrnn straf-ras PATENT OFFICE.

LINUS E. BRAOE, OF EVANSTON, ILLINOIS, ASSIGNOR OF ONE-HALF T0 W. H. FAHRNEY, 0F

' GICAGO, ILLINOIS.

DBIVEN MOLD FOB BUNKEN "ONOltETE STRUCTURES.

no. 908,441t

To all whom 'it may co'ce'm:l Y

Be it known that I, LINUS H,.` BR,ACE, a citizen of the United States, residing at EvanstonJ in the county of Cook and St te of Illinois, have invented a new and usefu Improyement in Driven Molds for Sunken Concrete Structures, of which the following is a specification.

The-object of my invention is to provide a mold-construction which shall adapt it to be driven, in the manner of pile-driving, to receive concrete to be molded therein and form a pile, a pier, sea-wall or other section of a sunken or submerged structure, and to be' withdrawn for repeated use in completing the structure.

In the accompanying drawings, Figure 1 is a perspective view of a preferred form of the casing of my im' roved nold Fig. 2 is a similar view of the living cap for the mold, and Figs. 3 and 4 are perspective views of two slightl different forms of the driving-point used; i 5 is a ierspective view showing in unaissem led re ation the sectional metal sheeting used as lining for the mold-casing; -6 1s a transverse section through the complete mold, and Fig. 7 is a Asimilar view 1 but in the natureof a diagram showing a pro v l -a view for the same purpose showin molded section `of concrete confined in the mold-lining with the mold placed adjacent to it for molding anadjoining section of a concrete wall; Fig. 8 is a plan view of the casing-lining showing the means for collapsibly bracing the separable sections forming it; Fig. 9 1s a digrammatic view representing the ress o f the work of constructin a seaa by means of my improvement; ig. lOlis t le mold-mechanismin vertical section, an( Figi l1 is a lan view of a yoke-detail. It will sul'ice for the purposes of the following descriptin to confine it to the employment of my invention for constructing a concrete sea-wall by driving the mold to desired along one side,with a filling 12 of wood in itsl depth into the bed of a body of water, filling it with concrete to form a section ofthe wall, and removing the mold-casing for use in forming the next section while leaving the lining to support the prccedingly molded sectionuntil the concrete set.

The mold consists oi" ra lined casing l1,

formed of plate-steel and shown of general' rectangular shape in cross-section, open Specification of Letters Patent. appaia-iam mea mgm '5, isos. sai-m No. 446,595.

Patented Nov. 10, 1908.

backand channel-shaped ides 13 on its sides adjacent to offsets 14 in the casing, for guiding the movement of the mold in a piledriver (not shown). Similar lates 15, 15 ithrespectively, in the back of t e casing and cover its open side, and similar plates 16, 16 fit against the opposite inner sides of the casing, being provi ed on their forward edges with lon itudinal jaws 17. Each of these plates, W ich form the essentially sectional casing-lining, is provided with a notch 18 in its upper end and contains a hole 19 below the notch at which to en age it for handlin it through the medium `o a crane 0r derric (not shown)` A ca 20 fits upon the upper end of the casing an has formed on it an annular seat 21 for the wooden head 22 reinforced about its upper end with a metal band 23 and ada ted to receive the impact of the hammer o the pile-driver. The lower end of the casing is closed by a metal drivin -point 24;(F' 3) in molding the first wall-section and )gy a driving-point 25 (Fi 4) in moldi-each succeedin section. `he oint is r eirablv formed so id of the genera shape illustrated,` that shown in Fig. 3 havingaroove 26 formed about three sides of its-top or seating the casing and the front and' sideliningsheets, and a transverse groove 27 for seating the back lining-sheet or cover 15; and the void of a seating-groove 27 and is therefore l that much shorter.

To assemble the parts of the mold for beginning operations on a selected site, the sheets 15 and 16 are adjusted in place in the casing and the point 24 and cap 20 are applied, a rod 28 rising from the point to en gage ahook 29 on its up er end with a loop 129 depending centrally ii-om the cap. flfhe sheets 15 and 16 thus occupy the relative positions re resented in Fig. 6.

Wit-h the parts thus assembled the mold'is ready to be placed for driving it into the bed 36 oi a body of water, indicated at 37, by the usual operation of a pile-driver acting against the head 22. \Vhen the mold has bee' thus driven to the desired de th the cap 2 is removed and-the mold is illed to the re uired height with concrete 3S to form a wa section 39, though the fillin may be donc while the mold is being lowere into place, as indicated in Fig. 10. Thereupon the casing 11 applied to their threaded ends.

1 done temporarily b the previously molded concrete section.

nently in the bed 36 and t e rod 28 'in the concr'ete, thereby rendering the rod a reinforcing-medium, and also leaving the sheet- 15 and 16 to support the concrete section. In raisin the casing to withdraw it, just before its ower end clears the upper ends of the linin -sheets, the latter must be braced against isplacement b the outward pressure of the `concrete filling. This ma be encircling theV s eets near their upper en s by a three-sided yoke (Fig. 1.1) ada 'ted to fit about the sidesheets 16 and bac -sheet 15 (or that adjacent to the fillin 12). When the casing is fully withdrawn rom the lining sheets, they are braced by a bar 31 having collars 32 near its threaded ends, which find bearing in the notches 18 of the side-sheets and are fastened by nuts 33 clamping'the sheet-s between them and the collars; and pivotal bracin -arms 34 extend from opposite sides of the ar 31 to introduce their threaded ends into the notches 18 of the sheets 15 which are clampedv between collars 35 on the arms and nuts 13,6

is then lined in the manner described with other side-sheets 16 and a back-sheet 15,

omitting, however, a front-sheet 15, and a head 25 and the cap 22 are applied and connected by a rod 28; andthe mold thus completed is driven into the bed close to a face of In driving the mold the edges of the open side of,the casingle'nter and are guided (see Fig. 7)

iii the jaws 17- of the side-sheets 16 left the embedded, as aforesaid, and the embedded back-sheet 15 at the first-molded wall-section 39 4(Figs. 7 and 9) covers the open side of the casin (see Fig. 10) when thus driven after driving, thereby protecting" the green concrete of the section 39 from damage 1n driving the mold so closely against it. The mold is lled with concrete to. form the second wall-section, whereupon the casing is removed to be again equip ed as last described and leaving the burie point 25 and its -rod 28 and the protecting lining-sheets of the three sides of the casing. (See Fig. 9.) It will be observed that for each mold-equipment after the first a point 25 is used instead of 4a point 24, since the latter would encounter obstruction in drivingit and it is not required to carry any sheet 15 for covering the open side of the casing and it must be as much shorter from front to back than the point 24 as the depth of entrance of the side- Vwalls of the casing into thejaws 17.

withdr`awn, after releasing and turning up ermit the concrete of the two sections to fa together 1c5 and thus unite and become bonded;Y 1 pact-head,

the arm 34 which clamps it, to

The casingy when the'concrete forming a wall-section has set the sup orting sheets 16 (and the front sheet 15 o the first-molded section) are withdrawn (Fig. 9) to be used over again 'for' lining the casing, the brace-mechanism 3l, 34 being removed to permit such withdrawal.

The operations thus described are repeated until the wall is completed, the regress of construction being illustrated iifligs. 9 and lf it be desired to construct the wall of double or greater thickness, sections may be molded in the manner described at theback or front sides of those forming vthe one thicky While Fig. 9 shows, for the purpose of the description, the froiitwall-section-bared of incasement While the two succeeding sections are still incased, it will be understood that a larger number of wall-sections than thus represented will be left. with the reinforcing mold-lining embedded because many will be formed in a day while it requires several days for the concrete to set.

What I claim as new and desire to secure by Letters Patent is- 1. A concrete-mold adapted to be driven for the purpose set forth, comprising a casing provided with a sectional lining separably contained therein, a drive-point on one end of the casing and a cap on its opposite end provided with an im act-head.

2J A concrete-mo d adapted to be driven .for the purpose set forth, comprising a casing having an open side and provided with a sectional lining separably contained therein, a drive-point on one end of the casing and a cap on its opposite end provided with an impact-head.

3. A concrete-mold adapted to be driven for the purpose set forth, comprising a casing provided with a sectional lining, means for separably connecting the lining-sections in the casing, a drive-point on one Vend of the casin and a cap on its ,o posite end pro- .vide with an im act-head, said point and cap being separab e from the casing.

4. A concrete-mold adapted'to be driven i for the purpose set forth, comprising a casing provided with a sectional lining, means for separably connecting the lining-sections in the casing a drive-point on one end of the' casin an a cap on its opposite end provide with an impact-head, and a rod separably connecting together said point, casing and cap. Y

. 5. .A concrete-moldy adaptedto be driven for the purpose set-forth, comprising a casing provided with a sectional liningseparably contained therein, a drive-point provided with seats for the lining-sections and casing on one end of the latter, and a cap on the pp posite end of the casing provided with an 1inand a red exten-disglrens said l!) 7. L 'oonorete-mold edspted be driven Miha urposesetforth oom nsmgoasmg open side, melia! shgets in said easmghtlwmingmdthe' inginouding side-hem havinged imm 15 extend alo said oenside, said s eets oonta' note es in t eir upyer ends, a. clamping connecting said side-sheets at thelr notches and having pivotal clam ing-arms extending from it to connecp the ot er sheets 20 at their notchesfa drive-point on one end of the c anda. cap on its opposite end p rovided wit an impact-head.

LINUS H. BRACE.

In presence of- L. HmsLAB, R. Seinem. 

